Emergency repairs – video

Prof Paul Riley of the University of Oxford explains his team's revolutionary approach to preventing heart failure in people at high risk of a heart attack. Currently there is no cure for heart failure apart from transplant, which is dogged by problems such as immune rejection and the lack of donor organs. But by reactivating cells that play a key role in the development of the heart in the embryo, Riley's team hopes to prime the organ to repair damage immediately after a heart attack